Crash after upgrading from UE 5.6.0 to 5.6.1

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Hey everyone,

Since upgrading my project from Unreal Engine 5.6.0 to 5.6.1, I’ve been running into crashes during shader compilation. At first, I was getting the error “Ran out of memory” while compiling shaders.

Now, the situation has gotten worse—the project doesn’t even open anymore. It crashes immediately after the main project loading screen finishes.

For context, here are my system specs:

  • OS: Windows 11

  • CPU: Intel i3-12100F

  • GPU: AMD RX 6600

  • RAM: 16GB DDR4

Has anyone else faced this issue, or is there a known fix/workaround for this in 5.6.1?

Thanks in advance!

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Hello there @Dynamite_FP!

Checking around the community, upgrading to new versions can cause certain conflicts with cached data from the previous builds. The usual solution for this is to perform a cache clear of your active project.

For that, please go to your project’s main directory, and deleted the following folders:

  • Saved/ShaderDebugInfo/
  • Binaries/Win64/
  • Intermediate/
  • %LOCALAPPDATA%/UnrealEngine/Common/DerivedDataCache/

After that, I recommend adjusting your system’s virtual memory, and increase its threshold to at least the recommended value:

It’s also worth testing to open UE with DX11 instead of DX12, using the launch flagh “-dx11”. If the issue persists after these steps, I would suggest rolling back to 5.6.0 until a quick fix is deployed.

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I have had this issue for the past week, can’t believe it actually worked.
Thanks a lot @brs-sebascova!!!

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